Mercedes 48v issues battery symptoms I’m getting the distinct impression there is a flaw, whether mechanical or software, that MB don’t know how to fix, and it doesn’t just apply to C Class. Note: each of these remedies correspond to a specific cause. The defect causes vehicles to shutoff, overheat, go into limp home mode, or lose acceleration at highway speeds. it can reveal possible short across cell such as sulfation. Drove to my nearby dealer, who had the car 18 days and reported the car fixed. Sep 15, 2005 · Battery testing using volt meter is the easiest, but the hygrometer is able to test specific gravity of the electrolyte and a even stronger indication of the health of the battery. How-to procedure: Here take an example of 48V battery elbow type. Cause 2/5: Limp home mode with additional symptoms: overheating, A/C blowing hot, and loss of acceleration with fault code: B1873371 The battery for 48V on-board electrical system has a malfunction. The most common causes of dead battery in C-Class are internal degradation of the battery due to old age, and bad alternator – but can also be caused by Mar 21, 2024 · Welcome to our comprehensive guide on repairing Mercedes-Benz 48V lithium batteries using the CG100X repair tool! If you're a Mercedes owner facing battery i Remedy 2: Battery Not found in Quick Test, OR Fault B183301 in DC/DC, and/or B183349 in 48V battery. Locate IC chip 95M01. Update DC/DC converter N83/1 if later software is available. Some owners have even cautioned extended use of the MB app citing potential cause of additional battery drain. I do repair those batteries for customers by just opening up, digging into the circuit boards, and refreshing some EEPROM files. But based on comments on mbworld. if 48V battery not found in quick test, OR if fault B183301 in DC/DC, OR if fault B183349 in 48V i. 6 hours labour. Plus, explore maintenance tips to ensure optimal performance and prolong battery life. Apr 28, 2023 · Owners report that early warning signs of battery problems include warning lights or an error code on the dashboard. The BMS cannot be reset or reprogrammed with conventional scan tools. Driving along and suddenly a warning comes up "electrical consumables shut down". You can see the IC chip when you open the upper case of the battery. June 28, 2021 — A Mercedes-Benz GLE 450 class action lawsuit alleges the SUVs suffer from problems Mar 8, 2024 · Let’s dive into the common symptoms, potential causes, and solutions for Mercedes-Benz GLC battery drain issues. Sep 1, 2022 · CG100 PROG III V6. Unlock a Looking at a 2022 E53 AMG that seems like a very good deal. 0 added 2015 onwards Mercedes-Benz 48V lithium battery W167/ W203/ W205/ W222 repairing function. This is unfortunately quite common issue across entire Mercedes mo The hassle for the dealership is that even if the car gives you this message, if the technician tests the battery with the Mercedes required battery tester and it says charge or pass, we cannot replace the battery. Which Mercedes Models Are Affected? Dec 24, 2021 · A second defect has been alleged relating to Mercedes-Benz vehicles with 48V/12V battery hybrid systems. Reply reply Mar 7, 2022 · There are two types of battery module: straight and elbow. Check the step-by-step guide to repair the battery. Straight. Soon after that quote however they told me that the fault could be rectified without replacing the battery but by simply performing a software update on the existing one. Jun 11, 2022 · The most common symptoms of dead battery in Mercedes-Benz C-Class are slow engine crank, no start, dim lights, flickering dashboard lights and clicking noises when trying to start the engine. 5L EQ engine. Wiring diagram to Benz 48V battery module. Repair procedure is the similar. Returned two days later with same problem. elbow. a. Mercedes requires us to open a technical support ticket which can take anywhere from 2-10 days for them to respond to in order to Jan 31, 2022 · I read on USA forums of many problems with the 48 volt battery in these cars, but they all seem to be different to my problems. Cause 5 is from the 48V battery detecting an abnormality which then causes the 48V battery to disconnect itself. Owners often report warning messages when the 48V battery malfunctions. Looking at a 2022 E53 AMG that seems like a very good deal. Sep 20, 2022 · The Mercedes technical documents say that you cannot charge the 48v directly, so I suspect that when you connect to the jump points it goes through a control box sat on top of the 48v, that directs the flow to the 12v in the boot floor and then it uses that to send converted current between the 48v and 12v. I found a lawsuit about it from about a year ago in New Jersey but it seems that hasn't been resolved. Understanding the Mercedes-Benz GLC Battery Drain Issues. Mercedes-Benz 48V Battery TSB. A Mercedes-Benz service manager allegedly told the owner that several other 2023 Oct 19, 2023 · Electrical System:12V/24V/48V Battery Summary: Mercedes-benz ag (mbag), the manufacturer of mercedes-benz vehicles, has determined that on certain my 2022 sl (232 platform) vehicles, after a longer non-operational time of greater than 42 days or with a battery charge of less than 45%, the following battery fault message might display in the Does anyone else have a Mercedes sitting a dealer waiting for a 48V battery system? My 2021 GLE450 (which has been problem after problem, even outside of the 48v issues) has been parked at the dealer for a month, I was told it would be ready 9AM the next day on Oct 17, then I was told 5-8 business days, then "a couple weeks" then "end of November", and then, when I picked up the loaner, "3,4 . Where's the car now - at the dealer? Also, you say you called out the AA - is the car not covered by Mercedes Benz Mobilo roadside assistance? They will usually have MB STAR diagnostic computer and can diagnose issues ar the roadside. The actuator is blocked. Jun 28, 2021 · Mercedes-Benz GLE 450 owner says th 48-volt batteries cause failures to start the vehicles. Discover the differences between Lead-Acid and AGM batteries, essential tools for the job, and crucial safety precautions. Replace only 48V battery (regardless of other faults) ii. At first they quoted me £1,324 for replacement of the battery including labour and VAT. Car had 1216 miles when the stop driving immediately warning came on the screen. 4. The disconnected 48V battery then causes subsequent symptoms: Limp Home Mode, overheating, A/C not blowing cold, or loss of accelera-tion. Ohms law for linear DC dictates that at the same load (resistance), 4X the potential = 4X the available current. Mar 17, 2024 · The malfunction also leads to other problems including overheating and air-conditioning problems. Mercedes-Benz issued a technical service bulletin (TSB) for this problem, NHTSA ID Number: 10189404, on February 19, 2021. Stay prepared Feb 24, 2021 · I have a 2022 540i xdrive M sport with a probable bad 48 volt battery. low SG reading indicates worn out battery which may not hold chargeor at least Familiarize yourself with the common fault codes related to the Mercedes Benz 48V hybrid battery issues. However, my dealer did let slip that I’m not the only one. Aug 20, 2024 · Once the 48v battery reaches +/- 18v, it will be disabled by the Battery Management System (BMS). Note: this fault code may include additional 48V system consequential faults although B1873371 is the primary root cause. Battery drain issues occur when a vehicle’s battery loses its charge faster than it should, leading to a dead battery and an inability to start the car. Oct 27, 2021 · In this video I am showing the way I am dealing with Auxiliary Battery Malfunction problem. 5. Follow our step-by-step instructions to charge your battery while avoiding common pitfalls. Aug 1, 2023 · The petitioner’s vehicle had just ~2,400 miles (~3,800 km) on the odometer when the issues first appeared. Mar 29, 2012 · I had the very same issues. Nov 6, 2023 · As above, most likely there's an issue with the mild hybrid battery on the 1. Nov 10, 2024 · Learn how to charge your Mercedes battery effectively with our comprehensive guide. Here are some key points about the 48V battery system in Mercedes: 1. This was completed at the cost of 1. Purpose of the 48V Battery: Mild-Hybrid System: The 48V battery is primarily used in Mercedes’ mild Mar 21, 2024 · The recall affects 116,000 2021–2024 GLE and GLS SUVs from Mercedes-Benz, Mercedes-AMG, and Mercedes-Maybach to fix an issue with a 48-volt ground connection that could come loose. From understanding battery types to a step-by-step charging process, we've got you covered. May 7, 2024 · My 2023 Mercedes-Benz glc 4matic pinnacle edition has given me battery low and needs charging notices and has failed to start twice. However, upon further research it seems that this model along with several others can have major problems with the 48V battery dying. Discover essential tips on battery maintenance, recognize signs of battery issues, and explore various charging methods. 48V is exactly 4 times the potential (and therefore, available current) of the 12V system. Aug 13, 2024 · The 48V battery system in Mercedes vehicles is an advanced electrical architecture designed to support a variety of functions that improve both performance and efficiency. These codes include B183349 (internal electrical fault), B183371 (actuator lock), B183384 (signal below the allowed limit), and B183319 (battery malfunction with blocked actuator). Prioritize safety and ensure reliable vehicle performance to prolong your battery's life. The TSB lists the possible causes along with remedies for each. Oct 12, 2024 · Learn how to charge your Mercedes-Benz battery effectively with our comprehensive guide. Remove and disassemble the battery. Car now there six days without anything being done. org, the total lack of availability of third party 48V batts is creating a serious depreciation issue for these cars now that they get older (4+ years). the battery and the control electronics, the ISG (Integrated Starter Generator) is the heart of the 48V system. Its now on the shop for that issue and unusual tire wear on the front two tires. The manual says the battery does not have enough power to run everything and starts to shut down aux things like interior lights, parking sensors, etc. okcbh eczc qjbrmh oyujulr hltzb mfto gool ndlo iqqszcx ckrun